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  1. Article ; Online: Dataset of low global warming potential refrigerant refrigeration system for fault detection and diagnostics

    Jian Sun / Piljae Im / Yeonjin Bae / Jeff Munk / Teja Kuruganti / Brian Fricke

    Scientific Data, Vol 8, Iss 1, Pp 1-

    2021  Volume 10

    Abstract: Measurement(s) fault detection and diagnostics • temperature • pressure • mass flow rate • power Technology Type(s) fault imposition • measurement device Factor Type(s) fault type • fault scenario Sample Characteristic - Environment refrigeration system ... ...

    Abstract Measurement(s) fault detection and diagnostics • temperature • pressure • mass flow rate • power Technology Type(s) fault imposition • measurement device Factor Type(s) fault type • fault scenario Sample Characteristic - Environment refrigeration system Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.14384321
    Keywords Science ; Q
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Dataset of ultralow temperature refrigeration for COVID 19 vaccine distribution solution

    Jian Sun / Mingkan Zhang / Anthony Gehl / Brian Fricke / Kashif Nawaz / Kyle Gluesenkamp / Bo Shen / Jeff Munk / Joe Hagerman / Melissa Lapsa / Nader Awwad / Chris Recipe / Doug Auyer / David Brisson

    Scientific Data, Vol 9, Iss 1, Pp 1-

    2022  Volume 8

    Abstract: Measurement(s) temperature of air • weight of dry ice Technology Type(s) themocouple • scale Sample Characteristic - Environment climate system Sample Characteristic - Location united ... ...

    Abstract Measurement(s) temperature of air • weight of dry ice Technology Type(s) themocouple • scale Sample Characteristic - Environment climate system Sample Characteristic - Location united states
    Keywords Science ; Q
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article: Integrated supermarket refrigeration for very high ambient temperature

    Purohit, Nilesh / Vishaldeep Sharma / Samer Sawalha / Brian Fricke / Rodrigo Llopis / Mani Sankar Dasgupta

    Elsevier Ltd Energy. 2018 Dec. 15, v. 165

    2018  

    Abstract: This paper analytically investigates and compares the performance of a proposed ‘all-natural’ NH3/CO2 cascaded booster system to a conventional R404A direct expansion system as well as to an ‘all-CO2’ system with multi-ejector unit and flooded evaporator. ...

    Abstract This paper analytically investigates and compares the performance of a proposed ‘all-natural’ NH3/CO2 cascaded booster system to a conventional R404A direct expansion system as well as to an ‘all-CO2’ system with multi-ejector unit and flooded evaporator. Performance comparison is made based on the annual combined COP and Life Cycle Climate Performance (LCCP) for operation in selected cities of Middle East and India. Our results show that in extreme warm climate, the energy efficiency of the proposed configuration exceeds that of all-CO2 configuration by a maximum of about 12.23% and the total emissions are lower by up to 11.20%. However, the all-CO2 multi ejector system performs better in cold and mild warm climate. In the NH3/CO2 cascade, the high temperature NH3 system can be designed to be isolated from the accessible locations of the supermarket. The work presented is expected to help adoption of natural refrigerants such as CO2 and NH3 for commercial application in extreme warm climate conditions prevailing in many cities of Middle East and India.
    Keywords ambient temperature ; ammonia ; carbon dioxide ; cities ; climate ; emissions ; energy efficiency ; refrigeration ; supermarkets ; India ; Middle East
    Language English
    Dates of publication 2018-1215
    Size p. 572-590.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2019804-8
    ISSN 0360-5442 ; 0360-5442
    ISSN (online) 0360-5442
    ISSN 0360-5442
    DOI 10.1016/j.energy.2018.09.097
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Potential emission savings from refrigeration and air conditioning systems by using low GWP refrigerants

    Beshr, Mohamed / Vikrant Aute / Omar Abdelaziz / Brian Fricke / Reinhard Radermacher

    international journal of life cycle assessment. 2017 May, v. 22, no. 5

    2017  

    Abstract: PURPOSE: Refrigeration and air conditioning systems have high, negative environmental impacts due to refrigerant charge leaks from the system and their corresponding high global warming potential. Thus, many efforts are in progress to obtain suitable low ...

    Abstract PURPOSE: Refrigeration and air conditioning systems have high, negative environmental impacts due to refrigerant charge leaks from the system and their corresponding high global warming potential. Thus, many efforts are in progress to obtain suitable low GWP alternative refrigerants and more environmentally friendly systems for the future. The system’s life cycle climate performance (LCCP) is a widespread metric proposed for the evaluation of the system’s environmental impact. METHODS: In this paper, the potential emission reductions in the commercial refrigeration and residential air conditioning systems, made possible by shifting towards more environmentally friendly refrigerants in the US, are presented. First, the current LCCP of the most common commercial refrigeration and residential air conditioning systems is calculated. Then, the LCCP of the baseline systems, when using the potential low GWP alternative refrigerants, is presented. This helps to determine the systems which have the highest potential for emission reductions. RESULTS AND DISCUSSION: By shifting from the baseline refrigerants, R-404A and R-410A, to the suggested low GWP refrigerants, N-40 and L-41a, in the commercial refrigeration and residential HVAC systems, respectively, a combined drop of 30.43 % in the total emissions (i.e., total equivalent mass of emissions in kg CO₂ₑq) is obtained. This results from a 50.5 and 28.01 % drop in total emissions from supermarket refrigeration systems and residential air conditioning, respectively. CONCLUSIONS: Shifting to lower GWP refrigerants in the refrigeration and air conditioning systems helps to reduce the total emissions and negative environmental impacts of these systems. Shifting to a secondary circuit commercial refrigeration system using N-40/L-40 and residential air conditioning and heat pump systems using L-41a helps in reducing the total emissions.
    Keywords air conditioning ; climate ; emissions ; environmental impact ; global warming ; heat pumps ; refrigeration ; supermarkets
    Language English
    Dates of publication 2017-05
    Size p. 675-682.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 2009386-X
    ISSN 1614-7502 ; 0948-3349
    ISSN (online) 1614-7502
    ISSN 0948-3349
    DOI 10.1007/s11367-016-1186-6
    Database NAL-Catalogue (AGRICOLA)

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