Thermal comfort

This solution is applied for monitoring and control of temperature in rooms.

The devices most often used for the purposes of "THERMAL COMFORT" are:

• air temperature sensors - for measuring of temperature in rooms, usually in combination with measuring of air humidity;
• sensors for measuring of underfloor heating temperature;
• sensors for temperature of the water in radiator,
• sensors for measuring the outside temperature;
• devices for setting the temperature in room (room thermostat), usually they come with  a built-in sensor for temperature measuring;
• sensors for open / closed window;
• devices for measuring of electrical parameters (electricity meter);
• actuators for radiator valve control;
• IR actuators for air conditioner’s control;
• smart contacts;
• smart relays, etc.

The main functions implemented by "HEAT COMFORT" are:

• temperature monitoring;
• temperature maintaining.

Recommended room temperature values

What should be the temperature in a certain habitable room strongly depends on its occupants preferences. Below are written some recommended values ​​according to publications of the World Health Organization (https://www.who.int) and OVO Energy Ltd (https://www.ovoenergy.com):

- Recommended value of the room temperature in winter: 18 °C, when there are healthy and well-dressed people in it;

- On average, in the living rooms of people's homes in England in winter the temperature is maintained at 18-21 °C;

- These are the values ​​from some basic studies of room temperature in terms of comfort and health risk:

• > 24 °C - cardiovascular risk
• 18-21 °C - comfortable temperature
• 18 °C - minimum for comfort
• 12-16 °C - respiratory risk
• <12 °C - cardiovascular risk
• 9 °C - risk of hypothermia.

The temperature can be maintained by the following algorithms:

• position regulator for heating;
• proportional heating regulator;
• week schedule

Temperature monitoring

Current temperature values are displayed on one or more screens. The values can be shown in different colors depending on the set limits for low, normal and high temperatures.

The measured temperatures are stored in a archive.

Graphic trends show the temperature values for different periods, for example: week, month and year.

Trends can show several values, minimum, maximum and average values.

At click somewhere on the graphic image, a reading line appears showing the displayed values and the exact time.

The scale of the displayed values is adaptive, the upper value level depends only on the maximal values of the displayed parameters.

Visualization of temperature values

Temperature graph

Monitoring the outside temperature

The regulators can work in following operation modes:

• automatic control,         
• manual control.

Manual / automatic modes are interchanged from a preview screen.

In automatic mode, a control algorithm is applyed and the controller aims to maintain a temperature (T) equal to the setpoint (SP). Human intervention is limited to establishing the desired value of SP, by setting a value in the visualization screen or by a device for setting the temperature – so called thermostat. The SP can also be managed by a weekly schedule program..

In manual mode, the person acts directly on the actuator, controlling in this way a heater, convector, radiator or air conditioner respectively.

This intervention can be done in a preview screen or by wireless remote control.