Compression refrigeration cycle. Counter depth black refrigerator.
Compression Refrigeration Cycle
- Thermodynamic heat pump cycles or refrigeration cycles are the models for heat pumps and refrigerators.
- The complete circulation of refrigerant through an air conditioning system as it changes temperature and pressure, i.e., changes its state from vapor to liquid, then back to vapor.
- The complete cycle of stages (evaporation and condensation) of refrigeration or of the refrigerant.
- The reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition
- The action of compressing or being compressed
- the process or result of becoming smaller or pressed together; "the contraction of a gas on cooling"
- encoding information while reducing the bandwidth or bits required
- compaction: an increase in the density of something
compression refrigeration cycle - Coupled Power-Refrigeration
Coupled Power-Refrigeration Cycle: An Innovative Approach
Due to the large difference in demand and supply of electrical energy, power cut leads to interruption in the working of cold storages which ultimately results in spoilage of vegetables. Compression refrigeration cycles are widely used in cold storages due to the higher coefficient of performance over other refrigeration systems. The most significant energy consumer of compression refrigeration system is electric motor which drives the compressor. Environmental concerns such as ozone depletion and global warming have directed the research trend towards the emergence of new refrigeration technologies. The objective of this work is to provide an energy efficient alternate cooling technology which can utilize renewable energy sources for its operation. In this regard, coupling of organic Rankine cycle and compression refrigeration cycle along with performance augmentation by well known technologies is proposed. The coupled power-refrigeration cycle uses an eco-friendly refrigerant in the topping power and bottoming refrigeration loop. This work presents energy and exergy analysis of a coupled power-refrigeration cycle along with modified configurations.
Long Leaf Speedwell - blue
Reader Rock Garden, Calgary, Canada --------------------------- For those with an interest only. ------------------------ Saving the Flowers for our Children - Part 13a We will look at how to make a shelter with a maintenance life cycle of at least a thousand years albeit at higher initial cost. We need a structure that is both durable and strong. For durability and strength we will go with stone. To provide support we build in the strongest shape, a sphere. Or more precisely a geodesic dome. The wall thickness would be about 30 cm thick (just over a foot) and made of interlocking blocks - precision machined for a very precise fit. There could be up to 4 entrances at each of 90 degrees. In general it would look like an igloo with up to 4 large doors rather than one. There would be one vent at the top of each dome that would normally be used to input air through an earth tube in temperate and cold climates and as a top vent in warm or hot climates. Each block is designed by shape and fit to naturally shed any water (there should be no water to shed – discussed more later). To protect the very long term integrity of the shelter nothing is attached to the dome (no lights, no hooks, no decorations, no paint, no finish, etc) except at the external interface (door, windows, thermal separation). -Each dome is identical (except for connections) and about the size of a useable room for a family (dinning, kitchen, bedroom, utilities, storage, cooling/refrigeration, living/gatherings/entertainment, vegetable, washroom, etc.). Diameter of a dome about 5 meters (about 16 feet). -A typical configuration for a family of three would be 6 front by 6 rear domes interconnects. -At the front (facing solar south): utility, gatherings/living, kitchen, and 3 rooms for growing vegetables – from the left K, G, U, V, V, V – external front exit from G -At the rear: refrigeration behind kitchen, washroom behind gathering, storage, and 3 bedrooms - from the left R, W, S, B, B, B – external rear exit from S Left to discuss: earth tubes, floor, utilities, cooking, transportation interface, front exterior wall, watershed and what goes above the exterior of the dome. In part 13 b we will continue the shelter discussion.
GE 20.0 Cu. Ft. Side-by-Side
External Temperature Controls with Child Lock Combines the ease of 0-9 temperature settings, with the sophistication of electronic controls Sealed Vegetable / Fruit Crisper Provides easy storage for your fruits and vegetables Sealed Deli Pan Provides convenient storage for cheeses and luncheon meats Adjustable Gallon Door Storage Make room for milk and any other gallon-size containers Adjustable Glass Shelves Lets consumers maximize usable storage space FrostGuard Technology Protects frozen items from freezer burn by monitoring freezer door openings and defrosting only when needed AutoEnergy Saver Senses freezer and fresh door openings and adjusts refrigeration operation cycles accordingly Deluxe Quiet Design Significantly reduces operating noise NeverClean Condenser Condenser coils are encased, so they don't require cleaning in normal operating environments