Issue 2/1998

A simplified method is presented for the calculation of end temperatures of water and air in heating fin coils. Heat transfer area is supposed to be given larger than it would correspond with the coU rated pertormance. The overesti­mate coefficient p is defined by eq. (17) as a relative surplus of heat output. Required inlet and attained outlet tempe­ratures of water and air depending on p-factor are presented in two attached examples.

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Main problems in designing of non-standard heat supply for a comfort house are discussed.

The paper indicates a new way of designing heating radiators based on thermal comfort in heated room

The paper deals with the importance of suitable dimensioning of chimneys and air supply inlets for fireplaces.

The paper presents instructions for the operation of heating systems with radiators made from aluminium alloys

A concept of emissions exhaustion and separation in the glass works Czech Crystal in Chlum u Třeboně is presen­ted. An exhaust system was designed with respect to the requirements of variable technology modes and successfully put into operation. The problems of concentration measurements and evaluation of separating devices in the glass work under operating conditions will be described in the second part of the paper (VVI 3/98) including the principles of a continuously measuring system.

The paper presents important information about design of waste gases exhausts from CHP sources.

The paper presents important facts about air-conditioning device in the University hospital Motol designed 25 years ago and operated for 20 years, with focus on the hygienic aspects. A short version of the paper was presented on the conference Air-conditioning and Ventilation '97 in Prague.

The paper describes international standards for classification of environmental impact on electrotechnical devices. Applicability of these standards on machinery and mechanical engineering products is shown.

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