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74. Translate the following sentences paying attention to degrees of comparison.

1) The first radiator gets hotter than the second one etc. and the last radiator will be considerable cooler as the water will have given up most of its heat to the previous radiators along the pipe run. 2) The more radiators fitted, the greater the cooling between the first and last radiators. 3) Normally the main pipes to and from the boiler are large (at least 22mm) and smaller pipework (15mm) is branched off to feed a number of radiators. 4) The longer the run, the fewer radiators. 5) The smaller pipes contain less water so less heat is lost along each pipe run. 6) This pump is more prone to wear. 7) The greater the difference in temperature between the heat source and sink, the lower the coefficient of performance far any heat pump.

LANGUAGE DEVELOPMENT

75. Choose the contextual meanings of the words written in bold.

1. AHU – is a central unit consisting of a blower, heating and cooling elements, filter racks or chamber, dampers, humidifier, and other central equipment in direct contact with the airflow.

a) единица

c) элемент

b) часть

d) устройство

2. BTU – is any of several units of energy (heat) in the HVAC industry, each slightly more than 1 kJ.

a) единица

c) элемент

b) часть

d) устройство

3. Coil – is an equipment that performs heat transfer when mounted inside an Air Handling unit or ductwork.

a) выступать

c) выполнять

b) делать

d) представлять

4. Condensers are heat exchangers, and can transfer heat to air or to an intermediate fluid (such as water or an aqueous solution of ethylene glycol) to carry heat to a distant sink, such as ground (earth sink), a body of water, or air (as with cooling towers).

a) раствор

c) метод

b) решение

d) кризис

5. Damper - is a plate or gate placed in a duct to control air flow by introducing a constriction in the duct.

a) cжатие

c) сужение

b) свертывание

d) сжатие

6. Building codes may require zoning to save energy in commercial buildings.

a) код

c) технические условия

b) система кодирования

d) нормы и правила

76. Think of the synonyms for the following words.

to isolate – …

ventilator - …

device - …

operation - …

fluid – …

stream – …

fulfillment – …

moisture – …

element, ingredient – …

to remove – …

77. Read the following text and fill in the words from the list below.

a) longer

d) physically

g) thermostat

b) off

e) fitted

h) assumes

c) circulating

f) energized

i) fuel-efficient

The other common type is the older, and less 1)_______ "convection hot water, pumped heating" system. The boiler is 2)_______ all the time - the boiler thermostat keeping the boiler hot constantly. The hot water cylinder is heated by boiler water 3)_______ by natural convection, and domestic hot water 4)_______ the boiler water temperature. There is a pump 5)_______ to the radiator circuit and the room thermostat simply switches the pump on and 6)_______, circulating hot water around the radiators until the room 7)_______ is satisfied. The hot water cylinder needs to be 8)_______ located above the boiler, and heating the hot water takes much 9)_______ than a fully pumped system.