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An oil heater, also known as an oil-filled heater, oil-filled radiator, or column heater, is a common form of convection heater used in domestic heating. Although filled with oil , it is electrically heated and does not involve burning any oil fuel ; the oil is used as a heat reservoir (buffer).
A ceramic heater as a consumer product is a space heater that generates heat using a heating element of ceramic with a positive temperature coefficient (PTC). [ 1 ] [ 2 ] [ failed verification ] Ceramic heaters are usually portable and typically used for heating a room or small office, and are of similar utility to metal-element fan heaters .
An optimized heater design helps to control the heating power and modulate the local temperatures across the heater substrate. In cases where there is a requirement of two or more heating zones with different power densities over a relatively small area, a thick-film heater can be designed to achieve a zonal heating pattern on a single substrate.
The company was founded by the De'Longhi family in 1902 as a small industrial parts manufacturing workshop. [3] The company incorporated in 1950. [4] Historically a major producer of portable heaters and air conditioners, the company has expanded to include nearly every category of small domestic appliances in the food preparation and cooking, as well as household cleaning and ironing, segments.
The federal Competition Bureau has noted that purchasing a water heater outright "can result in substantial savings over time" compared to rental. [6] However, Reliance and other rental companies argue that because their rentals include maintenance, including replacement parts and labour, they can provide peace of mind for consumers. [7]
A typical evaporative, forced draft open-loop cooling tower rejecting heat from the condenser water loop of an industrial chiller unit Natural draft wet cooling hyperboloid towers at Didcot Power Station (UK) Forced draft wet cooling towers (height: 34 meters) and natural draft wet cooling tower (height: 122 meters) in Westphalia, Germany Natural draft wet cooling tower in Dresden (Germany)
The Antonia Fortress (Aramaic: קצטרא דאנטוניה) [a] was a citadel built by Herod the Great and named for Herod's patron Mark Antony, as a fortress whose chief function was to protect the Second Temple.
A Rankine cycle with two steam turbines and a single open feedwater heater. A feedwater heater is a power plant component used to pre-heat water delivered to a steam generating boiler. [1] [2] [3] Preheating the feedwater reduces the irreversibilities involved in steam generation and therefore improves the thermodynamic efficiency of the system ...