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An air source heat pump (ASHP) is a heat pump that can absorb heat from air outside a building and release it inside; it uses the same vapor-compression refrigeration process and much the same equipment as an air conditioner, but in the opposite direction. ASHPs are the most common type of heat pump and, usually being smaller, tend to be used ...
Specifically, the heat pump transfers thermal energy using a heat pump and refrigeration cycle, cooling the cool space and warming the warm space. [1] In winter a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in summer.
The first mini-split system was sold in 1961 by Toshiba in Japan, and the first wall-mounted mini-split air conditioner was sold in 1968 in Japan by Mitsubishi Electric, where small home sizes motivated their development. The Mitsubishi model was the first air conditioner with a cross-flow fan.
Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]
Pioneer Elite products include AVRs, Laserdisc players, CD players, DVD players, plasma computer monitors and televisions [Now discontinued], and rear-projection televisions. Pioneer Elite debuted their first Blu-ray Disc player, the BDP-HD1, in January 2007. [24] Pioneer released the first 1080p plasma display, the PRO-FHD1.
Walt Whitman, aged 37, steel engraving by Samuel Hollyer "Pioneers!O Pioneers!" is a poem by the American poet Walt Whitman.It was first published in Drum-Taps in 1865. The poem was written as a tribute to Whitman's fervor for the great Westward expansion in the United States that led to things like the California Gold Rush and exploration of the far west.
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