Heat Manufacturer, Suppliers and Exporter in India

Heat apparatus in the range

Fifteen products are linked below with a specification from each product page. The other eight in the listing are a solar cooker model, a steam heater for lead shots, a copper calorimeter, a ring and ball apparatus, a wave motion kit, two-stroke diesel and petrol engine models and a four-stroke diesel engine model.

Heat experiments these apparatus cover

The ball and ring, the bar and gauze and the pyrometer show that solids expand on heating and contract on cooling, with the pyrometer comparing three metals side by side. The linear expansion apparatus gives the coefficient of linear expansion of a rod heated by steam. Searle's apparatus finds the thermal conductivity of a good conductor, and Lee's and Charlton's apparatus finds it for a poor conductor held as a thin disc between the steam chest and the brass slab.

In calorimetry, Joule's calorimeter heats water with an electric current, the Callendar and Barnes apparatus finds the specific heat of a liquid by continuous flow from the constant level tank, and Joule's mechanical apparatus measures the mechanical equivalent of heat. The Clement and Desormes apparatus finds the ratio of the specific heats of air. The engine and solar models show how heat is turned into motion or stored in water.

Specification examples

In Lee's and Charlton's Apparatus (EL-H-10400) the brass slab hangs from a stout annular ring on three strings, below a brass steam chest 4.5 cm deep with inlet and outlet tubes, on a heavy retort stand; an iron slab of the same size is also offered, and the thermometer is not included. The Callendar and Barnes Apparatus (EL-H-10402) sits in a felt-lined wooden case with a hinged cover and is supplied with a brass constant level tank on a stand, without thermometers or meters.

Questions about heat apparatus

Which apparatus measure thermal conductivity?

Searle's Thermal Conductivity Apparatus (EL-H-10399) is used for good conductors such as its copper rod, and Lee's and Charlton's Apparatus (EL-H-10400) is used for poor conductors in disc form.

What must be ordered separately for Searle's apparatus?

It is supplied without thermometers and without a steam boiler, so both need to be added to the order if the laboratory does not already have them.

What comes with the Clement and Desormes apparatus?

A 10 litre glass reagent bottle with a leak-proof brass cap and bent tube, two stopcocks, a football pump and a manometer on a stand with scale. Mercury is not included.

Is Joule's calorimeter available in other versions?

Yes. The product page offers a customised copper calorimeter size and a version without the wooden outer vessel.

Related physics ranges

Heat is part of the Physics Lab range. Gas-law and liquid-expansion apparatus are in Properties of Matter, and engine models also appear in Applied Mechanics. Heat transfer apparatus for engineering courses are in the Engineering Lab range.

For a quotation, send product codes and quantities to [email protected] or use the Contact page.