1、 Guide for Carriage of Integral Refrigerated Containers on Board Ships GUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS MAY 2017 American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 2017 American Bureau of Shipping. All rights reserved. AB
2、S Plaza 16855 Northchase Drive Houston, TX 77060 USA Foreword Foreword This Guide provides the evaluation procedure and technical requirements to verify the eligibility of a Container Carrier for the optional notation IRCC-SP xxx/xx (Integral Refrigerated Container Carrier Stowage Positions). This G
3、uide becomes effective on the first day of the month of publication. Users are advised to check periodically on the ABS website www.eagle.org to verify that this version of this Guide is the most current. We welcome your feedback. Comments or suggestions can be sent electronically by email to rsdeag
4、le.org. ii ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 Table of Contents GUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS CONTENTS SECTION 1 Introduction 1 1 General . 1 3 Definitions . 1 5 References 1 7 Vessels Not Built Under Survey 2 9 Alte
5、rnative Designs . 2 SECTION 2 Technical Requirements for Notation IRCC-SP xxx/xx . 3 1 Plans and Data to be Submitted . 3 1.1 Ventilation Arrangements and Calculations . 3 1.3 Hold Space Plans 3 1.5 Electrical Plans 3 1.7 Other Plans . 3 3 Design Conditions . 3 5 Air Supply for Container Holds . 4 5
6、.1 Air Supply Calculation for Container Holds Designed for the Carriage of Integral Refrigerated Containers using Air-cooled Condensers . 4 5.3 Air Supply to Container Holds Designed for the Carriage of Integral Refrigerated Containers using Water-cooled Condensers . 4 7 Air Ventilation Systems . 5
7、7.1 Air Ducting and Air Distribution 5 7.3 Air Inlets and Outlets on Deck . 5 7.5 Supply Air Fans for Container Holds . 5 7.7 Heat Dissipation from Integral Refrigerated Containers Stowed on Deck . 5 9 Cooling Water Systems 6 11 Access to Containers for Monitoring and Repairs 6 13 Electric Systems .
8、 6 13.1 Electrical Power Supply . 6 13.3 Generator Capacity . 7 13.5 Electrical Installation 7 15 Monitoring, Alarms, and Indicators . 7 17 Fire Protection . 7 19 Bilge and Drainage Arrangement . 7 ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 iii SECTION 3 Survey Re
9、quirements . 8 1 Surveys During Construction 8 1.1 Testing of Air Duct Systems 8 1.3 Inspection and Testing of Related Systems . 8 3 Surveys After Construction . 8 APPENDIX 1 Power Demand for Mixed Cargo . 9 FIGURE 1 Electrical Demand for Ventilation System based on 40-Foot EU Containers . 9 FIGURE
10、2 Electrical Demand for Ventilation System based on 20-Foot EU Containers . 10 FIGURE 3 Electrical Demand for Generator and Power Distribution Systems based on 40-Foot EU Containers 10 FIGURE 4 Electrical Demand for Generator and Power Distribution Systems based on 20-Foot EU Containers 11 iv ABSGUI
11、DE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 Section 1: Introduction SECTION 1 Introduction 1 General The provisions of this Guide apply to container ships equipped to transport integral refrigerated containers. Where cargo is carried in refrigerated containers of plug-in
12、 or integral types which have their own individually mounted refrigeration machinery, hence requiring shipboard electrical power supply and in some cases the cooling water supply for the condensers, and where fitted, the associated temperature monitoring and control system, the Record will give the
13、total number of refrigerated containers onboard, the total design load in kW and the type of temperature monitoring and control system installed. Section 2 of this Guide provides the technical requirements for the optional notation: IRCC-SP xxx/xx (Integral Refrigerated Container Carrier Stowage Pos
14、itions) for container ships. When requested by the Owner, the systems and arrangements for stowage of integral refrigerated containers may be verified for compliance with the requirements outlined in Section 2 of this Guide. The Class Notation IRCC-SP xxx/xx is supplemented by two figures, the first
15、 of which stands for the number of certified integral refrigerated container stowage positions and the second figure for the percentage of containers carrying fruit/chilled cargoes. For example, IRCC-SP 940/35 designates that the ship is capable of the simultaneous carriage of 940 integral refrigera
16、ted cargo containers arranged on deck and/or in container holds, and a maximum of 35% of those cargo containers may be loaded with fruit or chilled cargoes. The number of integral refrigerated containers is based on FEU (forty foot equivalent units). Details concerning other container sizes, stowage
17、 positions and special conditions will be stipulated in the Class Record. The requirements in this Guide are in addition to the classification requirements for ships contained in the ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules). 3 Definitions Integral Refrigerated Container
18、. A standard container with a self-contained refrigeration system, located within the outer dimensions of the container, which can be driven by electrical power fed from an external power supply. The refrigeration system may be either a “clip-on” or an integral type of cooling unit. Container Plug-i
19、n Point. An electrical socket located at each container location on deck and each cell location below the deck, which is in accordance with ISO 1496-2. Hold Space. An enclosed space containing refrigerated containers. The containers are restrained within cell guides. If the ship is “open hatch” type
20、, the hold space refers to the space below the hatch coamings. Container Cell. This is the position of an individual container. It is typically located within a set of vertical cell guides and is normally enclosed by transverse stringers located above and below the container. 5 References The follow
21、ing Rules, Guides, Codes and Standards are referenced in this Guide: ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules) ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 1 Section 1 Introduction 7 Vessels Not Built Under Survey Vessels intended for th
22、e carriage of integral refrigerated containers, which have not been constructed under survey by the Surveyors, but which have been subsequently surveyed at the request of the Owners, satisfactorily reported upon by the Surveyor, and which comply with the requirements of this Guide, will be distingui
23、shed in the Record by the notation, as appropriate, but the mark signifying survey during construction will be omitted. 9 Alternative Designs Design arrangements modified from those which have already been proved suitable in service on board ships are subject to ABSs approval. For these installation
24、s and arrangements, ABS may require additional requirements regarding the documentation to be submitted for approval and the extent of testing. If this Class Notation is applied for ships other than container ships, it will be given special consideration. 2 ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGER
25、ATED CONTAINERS ON BOARD SHIPS .2017 Section 2: Technical Requirements for Notation + IRCC- SP xxx/xx SECTION 2 Technical Requirements for Notation IRCC-SP xxx/xx (1 May 2017) 1 Plans and Data to be Submitted (1 May 2017) The following plans and supporting information on the hold ventilation systems
26、 and the electrical supply to the container plug-ins are to be submitted. 1.1 Ventilation Arrangements and Calculations All container cargo hold and weather deck ventilation system diagrams showing all air ducting and air distribution system, details of air inlets and outlets (including type, size a
27、nd location), details of mechanical ventilation fans including duty point at design conditions, and details showing the means of protection against water ingress Power consumption of all ventilation fans Locations of all dampers, louvers, and remote stop control locations for all fans Proposed test
28、plan to measure ventilation distribution and flow volume 1.3 Hold Space Plans Stowage plan showing all integral refrigerated container stowage positions for designated container sizes Personnel access arrangements including access to containers for repairs Location and details of hold temperature me
29、asurement instruments 1.5 Electrical Plans Container power socket details and arrangements for both deck and hold space refrigerated containers Electrical load calculations for all refrigerated cargo containers and supporting equipment, including ventilation fans, see Subsection 2/13 Details showing
30、 electrical equipment installation in the container holds List of monitored and alarm points 1.7 Other Plans Plans demonstrating compliance with the Steel Vessel Rules for container ships will also be required. Stowage arrangement of containers including stacking loads 3 Design Conditions (1 May 201
31、7) The container refrigeration units carried on board must be fully functional at ambient temperatures up to 50C. The design conditions herein are based on the integral refrigerated containers being at their predetermined carrying temperature at the time the containers are loaded on board. The conta
32、iner hold ventilation systems are to be designed based on the size, number and type of refrigerated containers and the types of cargo to be carried. The ventilation system is to be capable of removing the heat from each refrigerated container cell and maintaining the hold temperature at or below the
33、 maximum hold temperature. ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 3 Section 2 Technical Requirements for Notation IRCC-SP xxx/xx The capacity of supply air is to be calculated based on the following conditions: Ambient air condition: 35C, (95F) Relative Humidi
34、ty 70% Maximum air temperature in container holds: 45C (113F) Maximum seawater temperature: 32C (90F) Alternative conditions will be specially considered upon request from the Owners and/or builders. 5 Air Supply for Container Holds 5.1 Air Supply Calculation for Container Holds Designed for the Car
35、riage of Integral Refrigerated Containers using Air-cooled Condensers The below values for supply air may be used for guidance: 3100 m3/h per 20-foot integral refrigerated container 4500 m3/h per 40-foot integral refrigerated container Alternatively, the supply air volumetric flow to the container h
36、olds may be calculated by applying the formula below. A simultaneous factor need not be applied. CV= ( )FFCRCWQW+ hvawhere CV= supply air capacity per container stowage position, in m3/s RCW= power demand per integral refrigerated container depending on cargo mix, See Appendix 1, Figures 1 and 2, in
37、 kW. FCQ= respiration heat of fruit cargoes per container, in kW FW= power demand of cargo hold supply air fans per container, in kW va= specific volume of incoming air (see design conditions above), in m3/kg h = change in enthalpy between exhaust air and inlet air, in kJ/kg = h45 h355.3 Air Supply
38、to Container Holds Designed for the Carriage of Integral Refrigerated Containers using Water-cooled Condensers Air supply calculations to the container holds are to be based on the following heat emission values: 1.5 kW per 20-foot integral refrigerated container 2.1 kW per 40-foot integral refriger
39、ated container Unless stipulated otherwise, a minimum of 8% of the container refrigeration units are considered to operate without water cooling. The below air supply values may be used for guidance: 460 m3/h per 20-foot integral refrigerated container 700 m3/h per 40-foot integral refrigerated cont
40、ainer. 4 ABSGUIDE FOR CARRIAGE OF INTEGRAL REFRIGERATED CONTAINERS ON BOARD SHIPS .2017 Section 2 Technical Requirements for Notation IRCC-SP xxx/xx 7 Air Ventilation Systems 7.1 Air Ducting and Air Distribution (1 May 2017) The integral refrigerated containers are to have an air ducting and air dis
41、tribution system which provides adequate heat dissipation regardless of the loaded condition. Hot spots are to be avoided. Dedicated supply air ducts and fans are to be arranged for each container stack. For the outermost stacks, one supply air duct and fan may serve supply air to the outermost two
42、or three stacks. A maximum of 16 integral refrigerated containers may be served by one supply air fan. For water cooled condenser units (2/5.3 above), the container hold ventilation system may be reduced to two air ducts with fans and the supply air outlets directed to the lower part of the containe
43、r hold. Supply air to the container holds shall be directed to the lower part (1/3height) of each container refrigeration unit. For water cooled condenser units (2/5.3 above), air distribution to each individual container need not be provided. Where the simultaneous stowage of 8.5-foot and 9.5-foot
44、height containers in holds is desired, the supply air outlets in the holds shall be provided with adjustable openings to provide direct supply air to the lower part of the container refrigeration units irrespective of the stowage pattern. Provisions to minimize the air flow resistance between contai
45、ner refrigeration units and exhaust air outlets of container holds shall be made. Restrictions of air flow caused by interferences (walkways etc.) are to be kept to a minimum. Arrangements allowing the rapid shutdown and closure of the ventilation fans and closure of the ventilation openings to each
46、 hold shall be provided in case of fire. 7.3 Air Inlets and Outlets on Deck The arrangement of air inlets and air outlets of cargo hold ventilation systems shall achieve heat dissipation from container holds even in heavy weather. If the air supply inlets must be provided with weathertight closures
47、in accordance with LLC 66/78, protection against water ingress, such as water traps or droplet separators, shall be provided. Other arrangements may be considered for acceptance, such as arrangements in locations protected against green water. Short-circuiting (recycling) of air supply is to be prev
48、ented by the positioning of air inlets and air outlets. Consideration of heat added from the deck-stowed containers into the cargo hold in addition to the effect of warm exhaust air impinging on deck-stowed containers shall be accounted for in the design. The design air velocity in exhaust air outle
49、ts shall not exceed 10 m/s. Air velocities up to 13 m/s may be accepted provided suitable arrangements for access doors to container holds allowing safe handling under any excess pressure condition inside container holds (e.g., by means of air locks or other suitable arrangements) are designed. 7.5 Supply Air Fans for Container Holds (1 May 2017) Supply air fans are to be designed so that they are capable of being operated simultaneously with the weathertight covers at the exhaust air outlets on one si
