Príspevok
Field measurements and analysis of supermarket refrigeration low temperature units
DOI: 10.18462/iir.compr.2021.0410
Stav prijatia: Abstrakt odmietnutý
Autori
| Meno | Organizácia | |
|---|---|---|
| Konstantinov Ivan | ONAFT | |
| Mykhailo Khmelniuk, DSc | ONAFT | |
| Wozniy Valerii, PhD | ONAFT |
Abstrakt
Conventional cooling technologies are energy intensive, which makes supermarkets the most electricity-intensive type of commercial building, which causes the greater part of their greenhouse gas emissions. Making refrigeration sustain-able, as a result, demands a system approach that not only fast-tracks the move from HFCs to natural refrigerants, butalso considers and prioritize the energy. Designers, manufacturers, contractors and operators of refrigeration systems must think through the skills required to not only install new technology, adopting to the customer needs but to maintain it in the future dynamic environment. This study is based on field measurements which were carried out in LLC "JUKA-Invest” laboratory. A number of experiments are carried out over pilot units and the detected temperatures were vali-dated. The research site is developed by specifications, guidelines or characteristics that can be used consistently to en-sure that materials, products, processes and services are fit for their purpose in accordance with ISO 23953-2: 2015 (E). Pilot Units are equipped with a modern data monitoring system. All equipment has been certified and complies with international standards. This part of the study investigates the performance of the freezer compartment M400S+. Using the field measurements, low temperature level cooling demands and COPs are calculated for peak loads, filtered and averaged to monthly values. The temperature fields are determined taking into account the features of the unit structure, revealing the disadvantages and advantages for tested pilot unit. The obtained study results make it possible to determine the thermal fields for commercial refrigeration equipment, to determine the places of excessive thermal load and the ability to collect the input data to start the creation of a single model for calculating the commercial re-frigeration equipment for low temperature units.
Kľúčové slová
Low Temperature Units for Supermarkets; Temperature; Heat Inflows; Peak Loads; Power.