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Temperature control in a refrigerated transport container

A container and controller technology, used in household refrigeration devices, cooling fluid circulation devices, coolers, etc., can solve the problems of refrigerated commodities being susceptible to freezing damage and freezing damage.

Inactive Publication Date: 2014-05-21
A P MOLLER AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Additionally, many refrigerated commodities are susceptible to freeze damage, which is especially problematic when sensitive commodities (like grapes) are shipped at a set point just above their freezing point

Method used

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  • Temperature control in a refrigerated transport container
  • Temperature control in a refrigerated transport container
  • Temperature control in a refrigerated transport container

Examples

Experimental program
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Embodiment Construction

[0076] figure 1 A simplified longitudinal cross-sectional view of a refrigerated space in the form of a refrigerated transport container is schematically illustrated.

[0077] One example of a refrigerated transport container 1 or another type of refrigerated storage space comprising at least a transport volume 45 , a control unit 7 and a cooling space 41 is shown. The cooling space 41 may be located inside the insulated shell of the transport container 1 and may (as shown) be separated from the transport volume 45 by a panel or the like equipped with one or more openings to allow return airflow 50 to enter the cooling space. Space 41 and allows supply air flow 55 to come out of cooling space 41 .

[0078] Air flow through the cooling space may be maintained by, for example, one or more evaporator fans 10 or one or more other units serving a similar function. On its way through the cooling space 41, the air passes sequentially at least through a return air temperature sensor...

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PUM

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Abstract

Disclosed is a system for and a method of controlling temperature within a refrigerated transport container (1), the refrigerated transport container (1) comprising at least a transport volume (45), a control unit (7), and a cooling space (41), one or more evaporator fans (10) providing an air flow through the cooling space (41), where air passing through the cooling space passes at least a return air temperature sensor (5), a cooling unit (16), and a supply air temperature sensor (25), wherein the method comprises controlling unmeasured temperatures in the transport volume (45) within a temperature range adjacent to a setpoint or target temperature (Tset), using two or more transport volume temperature indicators, where the indicators are based on at least measured supply air temperature and / or measured return air temperature. In this way, control of unmeasured temperatures in the transport volume is provided that enables improved control over temperatures of the loaded perishable produce thereby reducing the rate of quality loss of the transported produce.

Description

technical field [0001] A method and system for controlling the temperature within a refrigerated transport container or other refrigerated storage space is disclosed. Background technique [0002] The temperature in a refrigerated transport container or other kind of refrigerated storage space is typically controlled to within a temperature range adjacent to a set point temperature or target temperature (hereinafter referred to as set point temperature or set point). A refrigerated transport container may, for example, comprise an insulated outer shell divided into a cooling space and a transport volume. Typically, the transport volume is loaded with perishable products such as meat, vegetables and fruit. Then, a set point temperature is usually selected to reduce deterioration of perishable products. [0003] The cooling space may eg be separated from the transport volume by a panel equipped with one or more openings to allow flow of return air from the transport volume i...

Claims

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Application Information

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IPC IPC(8): F25D11/00F25D29/00
CPCF25D11/003F25B2700/21172F25B2700/21173F25D29/00F25D2500/04F25D2700/12F25D2700/123
Inventor 雷恩·约翰内斯·谢兰普·卢卡斯雅纳克·安米·德克拉默-库盆
Owner A P MOLLER AS
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